Raven vs Zulip

Comparing two open source alternatives to Discord and Slack. Use the comparison below to decide which one fits your needs.

Raven

AGPL-3.0

Simple, open source team messaging platform

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Zulip

Apache-2.0

Open-source team chat with a unique topic-based threading model that makes it easy to follow multiple conversations.

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Side-by-side comparison

	Raven	Zulip
License	AGPL-3.0	Apache-2.0
Self-hostable	No	Yes
GitHub Stars	813	26,027
Forks	378	10,378
Open Issues	131	2,048
Last Commit	Oct 11, 2026	Oct 9, 2026
First Released	Feb 10, 2023	Sep 25, 2015
Categories	Team Chat & Messaging Tools	Team Chat & Messaging Tools
Tags	#chat #messaging	#chat #messaging #collaboration

GitHub stars over time

Raven813

Zulip

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